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Cheap flights from Seattle to Ireland from €248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 19/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 - 18:00DUB-SEA
13h 30m1 stop
€352Icelandair
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Wed, 4 Mar - Wed, 11 Mar
Icelandair Logo
15:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
12:15 - 20:45DUB-SEA
16h 30m1 stop
€353Icelandair
Find Deal
Sun, 22 Mar - Wed, 1 Apr
American Airlines Logo
18:50 - 21:00SEA-ORK
18h 10m1 stop
American Airlines Logo
11:55 - 11:30ORK-SEA
31h 35m1 stop
€406American Airlines
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Mon, 5 Jan - Mon, 12 Jan
American Airlines Logo
18:50 - 16:45SEA-SNN
13h 55m1 stop
American Airlines Logo
07:50 - 21:59SNN-SEA
22h 09m2 stops
€411American Airlines
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Mon, 5 Jan - Sun, 18 Jan
Delta Logo
13:40 - 15:00SEA-ORK
17h 20m1 stop
Delta Logo
17:15 - 12:35ORK-SEA
26h 20m1 stop
€412Delta
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Tue, 3 Mar - Wed, 11 Mar
Delta Logo
13:40 - 15:00SEA-ORK
17h 20m1 stop
Delta Logo
17:15 - 18:32ORK-SEA
32h 17m2 stops
€421Delta
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Tue, 3 Mar - Wed, 11 Mar
United Airlines Logo
12:20 - 10:15SEA-SNN
13h 55m1 stop
United Airlines Logo
12:30 - 22:59SNN-SEA
18h 29m2 stops
€470United Airlines
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Thu, 30 Apr - Thu, 7 May
United Airlines Logo
14:16 - 10:15SEA-SNN
35h 59m2 stops
United Airlines Logo
12:30 - 01:14SNN-SEA
20h 44m2 stops
€475United Airlines
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Sat, 4 Apr - Sat, 25 Apr
Multiple Airlines Logo
20:05 - 17:10SEA-KIR
13h 05m1 stop
Multiple Airlines Logo
10:25 - 18:20KIR-SEA
15h 55m1 stop
€1,077Multiple Airlines
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Fri, 19 Dec - Fri, 26 Dec
Multiple Airlines Logo
08:10 - 17:10SEA-KIR
25h 00m3 stops
Multiple Airlines Logo
10:25 - 18:20KIR-SEA
15h 55m1 stop
€1,487Multiple Airlines
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Fri, 19 Dec - Fri, 26 Dec

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
4 Mar
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
11 Mar
DUB11:30Dublin
13h 30m
1 stop
SEA18:00Seattle/Tacoma Intl
€352
Find similar
Icelandair
22 Mar
SEA15:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
1 Apr
DUB12:15Dublin
16h 30m
1 stop
SEA20:45Seattle/Tacoma Intl
€353
Find similar
Icelandair
4 Mar
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
13 Mar
DUB11:30Dublin
13h 30m
1 stop
SEA18:00Seattle/Tacoma Intl
€370
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British Airways flights from Seattle to Ireland

Our best British Airways deals on Seattle to Ireland flight tickets
British Airways
25 Feb
SEA18:50Seattle/Tacoma Intl
14h 10m
1 stop
DUB17:00Dublin
6 Mar
DUB08:50Dublin
16h 05m
1 stop
SEA16:55Seattle/Tacoma Intl
€387
Find similar
British Airways
1 Feb
SEA18:50Seattle/Tacoma Intl
29h 05m
1 stop
DUB07:55Dublin
10 Feb
DUB10:55Dublin
14h 00m
1 stop
SEA16:55Seattle/Tacoma Intl
€389
Find similar
British Airways
24 Feb
SEA07:15Seattle/Tacoma Intl
18h 20m
2 stops
DUB09:35Dublin
3 Mar
DUB10:55Dublin
14h 00m
1 stop
SEA16:55Seattle/Tacoma Intl
€391
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momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 22 November 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 4/3

14:35-10:15

1 stop11h 40m

Dublin

Wed 11/3

11:30-18:00

1 stop13h 30m

€352

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 22/3

15:35-10:15

1 stop11h 40m

Dublin

Wed 1/4

12:15-20:45

1 stop16h 30m

€353

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 5/1

18:50-21:00

1 stop18h 10m

Cork

Mon 12/1

11:55-11:30

1 stop31h 35m

€406

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/1

18:50-16:45

1 stop13h 55m

Shannon

Sun 18/1

07:50-21:59

2 stops22h 09m

€411

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 3/3

13:40-15:00

1 stop17h 20m

Cork

Wed 11/3

17:15-12:35

1 stop26h 20m

€412

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 3/3

13:40-15:00

1 stop17h 20m

Cork

Wed 11/3

17:15-18:32

2 stops32h 17m

€421

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 30/4

12:20-10:15

1 stop13h 55m

Shannon

Thu 7/5

12:30-22:59

2 stops18h 29m

€470

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 4/4

14:16-10:15

2 stops35h 59m

Shannon

Sat 25/4

12:30-01:14

2 stops20h 44m

€475

SeattleMilltown (Kerry)

SEA - KIR

SEAKIR

Seattle/Tacoma Intl

Fri 19/12

20:05-17:10

1 stop13h 05m

Milltown (Kerry)

Fri 26/12

10:25-18:20

1 stop15h 55m

€1,077

SeattleMilltown (Kerry)

SEA - KIR

SEAKIR

Seattle/Tacoma Intl

Fri 19/12

08:10-17:10

3 stops25h 00m

Milltown (Kerry)

Fri 26/12

10:25-18:20

1 stop15h 55m

€1,487

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €447.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €571 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €503 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 25% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 00m

Direct flights

Every day

Airports in Ireland

1 airport
The fastest flight from Seattle to Ireland takes 9h 00m
Direct flights go from Seattle to Ireland every day.
There is 1 airport near Ireland: Dublin (DUB)
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €39
Flights to Corkfrom €93
Flights to Shannon, Clarefrom €97
Flights to Donegalfrom €76
Flights to Milltown (Kerry)from €40